Bitcoin storage provider Xapo now holds about 7% of the world’s total Bitcoin supply in its vaults, “roughly” amounting to $10 bln, Bloomberg reports May 9 quoting unnamed sources.

According to two clients, the wallet and cold storage provider currently looks after an estimated $10 bln in the cryptocurrency.

A further source “close to” the vaults, which now encompass five continents, called the figure an “accurate approximation.”

Xapo has only been on the market since 2014, making headlines when it converted a Swiss bunker to a Bitcoin storage facility late last year. Prior to that, the startup had struggled to achieve validity during a move to the country from the US which proved troublesome with regulators.

Conversely, cryptocurrency funds now praise the storage concept, despite the arguable lack of complete control and more centralized setup it represents when compared to individual cold storage options such as hardware wallets.